1. Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
2. Anhui Key Laboratory of Low-Energy Quantum Materials and Devices, High Magnetic Field Laboratory, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
3. National Laboratory of Solid State Microstructures & Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, China
4. Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China